Window sash



FIG. 1 is a front elevation view of the extruded window sash showing my new design;

FIG. 2 is a right side elevational the left side being identical thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is a cross-sectional view taken along the line 6--6 of FIG. 1 and drawn on an enlarged scale with respect to FIG. 1 thereof; and,

FIG. 7 is a perspective view thereof. 

The ornamental design for a window sash, as shown and described. 